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JEE CHEMISTRY MCQ: THERMODYNAMICS
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A mixture of two moles of carbon monoxide and one mole of oxygen, in a closed vessel is ignited to convert the carbon monoxide to carbon dioxide. If ∆H is the enthalpy change and ∆E is the change in internal energy, then
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Correct option: B
∆H<∆E
Option B (∆H<∆E) is correct because the number of moles of gas decreases during the reaction, leading to a negative ∆n and thus ∆H < ∆E.
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